Catalysts comprising silica supported on alumina, their preparat

Details Catalysts comprising silica supported on alumina, their preparat Catalysts comprising silica supported on alumina, their preparat

1987-04-13

1988-10-18

McFarlane, Anthony

Catalyst, solid sorbent, or support therefor: product or process

Catalyst or precursor therefor

Silicon containing or process of making

502355, 502439, 502527, 423327, B01J 2112

Patent

active

047787791

ABSTRACT:
Useful cracking catalysts and catalyst supports comprising silica supported on alumina are prepared by compositing particles of silica or silica precursor with particles of porous alumina and subjecting the resulting composite to high temperature steaming in a non-reducing environment at a temperature of at least about 500.degree. C. for a time sufficient to disperse at least a portion of the silica over the alumina surface. The silica wets, spreads out and reactions with the surface hydroxyul groups of the alumina. The supported silica on alumina composites that can be made from this process may exhibit properties of both bulk silica and bulk alumina at the same time, bulk silica and alumina whose exterior surface only has been modified with silica as wells as composites exhibiting surface properties different from both bulk silica and bulk alumina.

REFERENCES:
patent: 2375757 (1945-05-01), Bates
patent: 2489334 (1949-11-01), Shabaker
patent: 2493896 (1950-01-01), Pardee et al.
patent: 3104943 (1963-09-01), Berry
patent: 3242069 (1966-03-01), Gladrow et al.
patent: 3257310 (1966-06-01), Plank et al.
patent: 3662002 (1972-05-01), Magerlein et al.
patent: 3819651 (1974-06-01), Worbs et al.
patent: 3826813 (1974-07-01), Gardner et al.
patent: 3857923 (1974-12-01), Gardner et al.
patent: 3898182 (1975-08-01), Brown et al.
patent: 3943064 (1976-03-01), Ballain et al.
patent: 4013589 (1977-03-01), Buonomo et al.
patent: 4094690 (1978-06-01), Morton
patent: 4337366 (1982-06-01), Fattore et al.
patent: 4376036 (1983-03-01), Garwood et al.
patent: 4392988 (1983-07-01), Dobson et al.
patent: 4442223 (1984-04-01), Chester et al.
patent: 4604373 (1986-08-01), Clark
patent: 4628042 (1986-12-01), Speronello
patent: 4631269 (1986-12-01), Lachman et al.

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